baber/WOPTO huggingface dataset:
Patent GB-1142740-A (GB)
Title: Automatic telephone exchange
IPC: H04Q3/00
Filed: 1967-10-12
Abstract: 1,142,740. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORP. 12 Oct., 1967 [14 Oct., 1966], No. 46539/67. Heading H4K. In an exchange system having subscribers who are equipped with V.F. dialling equipment, certain privileged subscribers can initiate (malicious) call tracing during an existing connection by sending a special V.F. code to the exchange. The special feedbridges taken into use for a call to a privileged subscriber contain V.F. receivers tuned to the V.F. code whereby reception of such a code causes the existing speech path to be interrupted so as to prevent the caller from hearing the code and a call tracing signal to be injected into a signalling wire associated with the speech path. The feedbridge includes tuned circuits for preventing speech or other signals from the calling party from affecting the V.F. receivers.
Patent GB-1173940-A (GB)
Title: Improvements in and relating to Polyester Film
IPC: B29C51/00
Filed: 1967-10-12
Abstract: 1,173,940. Polyester film. KALLE A.G. 12 Oct., 1967 [13 Oct., 1966], No. 46550/67. Heading B5B. Polyester film which is capable of being highly stretched, which can be sterilized, and which has a good storage life, is produced by thinning an amorphous polyester film in two orthogonal directions in the plane of the film with reduction in the film thickness to a thickness not more than 1/4 and not less than 1/9 of the original thickness, and maintaining the thinned film at a temperature of 120-140‹ C. without effective tension in one or both of two orthogonal directions in the plane of the film, until by shortening the thickness has increased again to at most double the thickness of the thinned film. Polyethylene terephthalate is mentioned as the preferred film material,
Patent GB-1326118-A (GB)
Title: Method of and apparatus for forming nails into a nailing strip
IPC: B65B15/04
Filed: 1971-10-07
Abstract: 1326118 Nail strips W H LEISTNER 7 Oct 1971 [8 Feb 1971] 46616/71 Addition to 1310732 Heading B8C The method for forming a nail strip as in Specification 1,310,732 is modified in that 60-80% of the adhesive 12 is extruded on to the nails 10 from above and 40-20% is extruded from below. The proportions may be regulated by using valves 45, 45a in extrusion heads 35, 35a, separate pumps (33) and pipes 34 for the heads 35, 35a or replaceable extrusion nozzles 36, 36a or orifices of different sizes. The endless chains 20 may be tilted or lie in a horizontal plane.
Patent GB-1516158-A (GB)
Title: Inductive reactance circuit
IPC: H03H11/00
Filed: 1975-11-13
Abstract: 1516158 Active impedance TELEFONAKTIEBOLAGET LM ERICSSON 13 Nov 1975 [15 Nov 1974] 46950/75 Heading H3U An inductive reactance circuit comprises a mutual inductance having a first and a second inductive windings L2, L1, a two input amplifier OP whose first input is connected to a tap on the first winding and whose second input is connected to an end of the second winding, possibly by a resistive divider R A  R B , which end is also an input of the circuit. Another input is provided by an end of the first winding. The amplifier has a high input impedance and preferably is an operational amplifier. The two windings L1, L2 may be on a common ferrite core. By varying the tap position on L2, or the position in R A , R B  connected to the amplifier, the equivalent inductance may be varied.
Patent GB-1523140-A (GB)
Title: Pigmentary printing pastes
IPC: C09D17/00
Filed: 1975-11-14
Abstract: 1523140 Pigment print pastes PRODUITS CHIMIQUES UGINE KUHLMANN 14 Nov 1975 [15 Nov 1974] 46976/75 Heading D1B Pigment print pastes in the form of an emulsion or semi-emulsion of the oil-in-water type contain, (a) a water-soluble thickening agent which comprises at least 20% by weight of dry material and which has been swollen in an aqueous medium containing alkali and which results from polymerisation or copolymerisation of at least 20% of an unsaturated carboxylic acid of 3 or 4 carbon atoms or an anhydride thereof. (b) a nonionic surface active agent, liquid and insoluble in water of MW 1,000 to 20,000 and which is the condensation product of at least one alkylene oxide with a compound having at least one atom of active hydrogen, (c) a pigment, (d) a binding agent in the form of a copolymer of unsaturated monomers and (e) an emulsifying agent. In addition to the surface active additive a water-insoluble liquid compound having a fatty character carrying at least one aliphatic radical of at least 8 carbon atoms, and/or a hydrophobic solvent with a BP of 100 to 250C in the ratio of from 10 to 30 parts of solvent to 100 parts of additive, e.g. castor oil, olein, or paraffin oil, the hydrophobic solvent may be a saturated aliphatic hydrocarbon of BP 140 to 200C containing less than 5% of aromatic hydrocarbons.
Patent GB-1307060-A (GB)
Title: Venturi tube for a gas-fired water heater
IPC: F23N1/08
Filed: 1971-10-11
Abstract: 1307060 Valves JUNKERS & CO GmbH 11 Oct 1971 [23 Oct 1970] 47166/71 Heading F2V [Also in Divisions F1 and F4] A gas-fired water heater has a water deficiency cut-out device with a Venturi tube 23 having a stepped hollow bore with suction openings 26 adjacent the upstream step and at least one opening 35 adjacent the next downstream step. This is stated to reduce noise when the device is operative. The device comprises a flexible diaphragm 14 separating a high-pressure water chamber 13 from a low-pressure water chamber 15. The latter communicates through duct 16 with the suction openings 26, 35 of the Venturi tube. Cold water enters the device at 11 and passes through duct 19 into the Venturi tube thereby causing a pressure drop in chamber 15 which produces movement of the diaphragm 14 and thus of a plunger 18 connected to the gas valve of the heater. A water flow regulator 17 is provided. Heated water enters at 20 and is discharged through outlet 21.
Patent GB-1027758-A (GB)
Title: Polymerisation of olefins
Inventor: CHAUVIN YVES
IPC: C08F210/00
Filed: 1964-11-20
Abstract: Polyolefines of alpha structure are produced by polymerizing a bi-secondary olefine of formula <FORM:1027758/C3/1> in which R1 is a straight chain or branched alkyl group which may be substituted for example by halogen atoms or aryl radicals, and R2 is a straight chain alkyl group preferably containing 1 to 4 carbon atoms, using as catalyst a mixture of a compound of a Group VI or VIII metal (Mendel<\>aeef) and an anionic co-ordination catalyst containing at least one compound of a Group IVa or Va transition metal and at least one activator which is a metal, a metal hydride or an organometallic compound of a metal from Group Ia, II, IIIb and IVb.  The preferred compound of a Group IVa or Va transition metal is a titanium halide and the preferred activator is a monohalo-dihydrocarbyl aluminium compound.  The preferred Group VIII metal compound is a nickel halide and the preferred Group VI metal compound is a chromium halide. However, complexes and co-ordination compounds of the Group VIII metals may be used.  A Lewis base, preferably a tertiary amine, a heterocyclic nitrogeneous base or a quaternary ammonium compound, may be added to the catalyst. Other Lewis bases mentioned are mercaptans, phosphoramides, phosphines, arsines, stibines, ethers and phosphorous and phosphoric esteramides. The bi-secondary olefines may be homo-polymerized or copolymerized with each other or ethylene.
Patent GB-1487102-A (GB)
Title: Method for producing dyed patterns on fabrics and apparatus therefor
IPC: D06B11/00
Filed: 1974-11-01
Abstract: 1487102 Dyeing textile webs E KUSTERS 1 Nov 1974 [11 Dec 1973] 47467/74 Heading D1L In the application of dye in the form of a pattern to a textile web e.g. a carpet, as streams of droplets from grooves in the lower end of an inclined plate 6', wherein the stream falls through a vibrating lattice 16 and the dye liq. is supplied to the plate 6' from a roller 4 partially immersed in a dye trough 2, the film of liq. picked up by the roller 4 is partially doctored by a series of transversely reciprocating blades 10.
Patent GB-1442947-A (GB)
Title: Traveller brake for ring-twining and ring-spinning machines
IPC: D01H15/00
Filed: 1974-11-04
Abstract: 1442947 Traveller brake SAURER-ALLMA GmbH ALLGAUER MASCHINENBAU 4 Nov 1974 [3 Nov 1973] 47641/74 Heading DID A traveller brake in a ring twining or spinning machine has a brake ring 5 or 15 which is movable to engage the traveller along substantially its whole path, several such rings being movable by means of a brake rod 8 or 18 extending longitudinally of the machine. As shown in Fig. 1 the ring has a lining 6 which engages the traveller 4 from below by means of tension springs 7 when released by rotary brake rod 8. The brake rod 8 is maintained in the released position by electromagnets. In Fig. 4 the brake ring comprises a band 15 anchored at one end and attached to brake rod 18 at the other. When actuated the band grips the traveller 4' externally by means of a lining 16. The lining material may be soft rubber, foam rubber, felt, leather or a brush.
Patent GB-1384429-A (GB)
Title: Method and apparatus for transporting a liquid paint
IPC: F04B53/10
Filed: 1972-10-17
Abstract: 1384429 Reciprocating pumps ATLAS COPCO AB 17 Oct 1972 [22 Oct 1971] 47684/72 Heading F1A In a pump 12, Fig. 1 for supplying paint from a container 10 to a paint using device, e.g. a spraygun 22, the return stroke of a piston 14 is much quicker than the working stroke because a valve 17, which opens during the return stroke, permits free flow of the paint. The agitation caused by the rapid movement of the piston prevents the settling of sediment. Flow from a return pipe 24 also assists in this. The piston is driven by an air-motor 31. In Fig. 2 an air-motor 31 moves the piston 55 through pivoted links 33, 58 and the suction valve comprises an annular member 68 which closes holes 70' in the piston. Fig. 3 shows an embodiment in which a piston 14 and cylinder 13 are immersed in a paint holder 10 and the piston is reciprocated by an air-motor 31. Fig. 4 (not shown), shows a similar arrangement in which the piston is stationary and the cylinder is reciprocated. (For Figures see next page)
Patent GB-1248433-A (GB)
Title: Improvements in gapless magnetic transducers and apparatus utilizing the same
IPC: G11C13/06
Filed: 1968-10-09
Abstract: 1,248,433. Magnetic transducers. GENERAL ELECTRIC CO. 9 Oct., 1968 [8 Nov., 1967], No. 47810/68. Heading G5R. A gapless magnetic transducer has an anisotropic thin magnetic film 64 on a substrate 62, a read/write winding 54 wrapped around both film and substrate, and an auxiliary winding 66 also wrapped around both film and substrate so as to produce a magnetic field having no direct effect on the read/write winding. Interrogating pulses fed to the winding 66 cause wall motion or rotation of the film domains and in the presence of a recorded field 37 allow that field to be sensed by the winding 54. A variety of configurations are described (Figs. 4 to 9, not shown).
Patent GB-1449033-A (GB)
Title: Self-imaging with an optical tunnel for image formation
IPC: G02B6/00
Filed: 1973-10-12
Abstract: 1449033 Light guides XEROX CORP 12 Oct 1973 [17 Oct 1972] 47862/73 Heading G2J  An optical system for the formation of images of a symmetrical object H comprises means for providing mono-chromatic irradiation (coherent or non-coherent) from the object and a lighttransmitting element 1 having reflective walls, e.g. 2, 4, such that identical images of the object are formed at predetermined distances therefrom with element dimensioned according to L = (n + V/V)2d<SP>2</SP>/# where L = the length and d the width of the object, # is the wavelength of the light, and n, v, V are integers, and # may be a factor of V. If coherent light is used, Fourier images are obtained; if non-coherent, Fourier and Fresnel images. The images are stated to be formed by interference of light from the object and from the virtual objects formed in the object plane, see Fig. 2, and the element 1 may be a waveguide or optical fibre. The element is a hollow, rectangular, equilateral parallelopiped and may be filled with a liquid or gas.
Patent GB-1207308-A (GB)
Title: Dynamo electric machines
Inventor: PANNELL DENNIS ALEXANDER
IPC: H02K1/24
Filed: 1966-10-26
Abstract: 1,207,308. Mounting diodes. ROTAX Ltd. 24 Jan., 1968 [26 Oct., 1966], No. 48031/66. Heading H1K. [Also in Division H2] Rectifying diodes are mounted on heat sink 35 which is secured within the hollow shaft of an alternator (see Division H2). The diodes 40 are mounted on angularly spaced platforms 36 so that the dice of semi-conductor material is held firmly against the base portion by the action of centrifugal force. The A.C. input is applied at terminal plates 70 and the D.C. output taken from terminals which connect with plates 72. Cooling fluid is passed through the hollow shaft and thereby cools the rectifier assembly.
Patent GB-1170200-A (GB)
Title: Improvements in and relating to an Electrical Connection.
Inventor: KARVONEN ERKI
IPC: H01L39/02
Filed: 1968-10-10
Abstract: 1170200 Electric couplings BROWN BOVERI & CO Ltd 10 Oct 1968 [13 Oct 1967] 48109/68 Headings H1A and A4D In an electrical connection between two hard super-conductors, which exhibit a resistance of less than 10<SP>-6</SP> ohms in the presence of a magnetic induction of 30 k. Gauss, the ends of the super- -conductors 1 are spot welded to a plate of hard super-conductive material 3, which has previously been annealed to increase the critical current density. The plate itself may be connected to an underlay 4 of normally conductive material, such as copper, and the super-conductive conductors 1 may have a coating 2 of a similar material, which is removed at the location of the spot-welds 6, and the ends of which are soldered at 5 to the copper underlay 4. The plate may be of niobium titanium alloy with 10-90 wt. per cent of titanium, and may have an additive of 0-30% tantalum. The super-conductors may be of niobium-zirconium alloy with 25% by weight of zirconium. The plate 3 must have a sufficient cross-sectional area F for the condition I=i c .F to be satisfied, where i c  is the critical current density and I the maximum possible current, in order that super-conductivity is maintained through the connection.
Patent GB-1346792-A (GB)
Title: Process and intermediates for preparing benzamide compounds
IPC: C07C237/44
Filed: 1971-01-18
Abstract: 1346792 Benzamide derivatives DELMAR CHEMICALS Ltd 18 Jan 1971 [21 Jan 1970] 48148/72 Divided out of 1346791 Addition to 1346791 Heading C2C Benzamide derivatives of the formula wherein X is Cl or Br, R is alkyl and Z is tertiary aminoalkyl are prepared by removing the phthaloyl group in phthalimido compounds having the formula when R 1  is alkyl and reacting the resulting amino compounds with amines of the formula ZNH 2 . Methyl 5-chloro-2-methoxy-4-phthalimidobenzoate is obtained by chlorinating methyl 2- methoxy-4-phthalimidobenzoate, resulting from the methylation of methyl 4-phthalimidosalicylate, which is made by reacting phthalic anhydride with methyl 4-aminosalicylate, obtained by esterifying 4-aminosalicylic acid. Methyl 2-methoxyphthalimidobenzoate may also be obtained by reacting dimethyl sulphate with 4-phthalimidosalicylic acid, resulting from the reaction between p-aminosalicyclic acid and phthalic anhydride. Reference has been directed by the Comptroller to Specifications 1,146,33 and 994,023.
Patent GB-1123413-A (GB)
Title: Berbine derivatives and processes for the preparation thereof
IPC: C07D455/03
Filed: 1965-11-12
Abstract: Novel compounds of the general formula <FORM:1123413/C2/1> in which Z1 represents a primary amino group or an amino group substituted with one or two alkyl groups or with one acyl group, an hydroxyl group, an esterified hydroxyl group, or an etherified hydroxyl group, the ether group comprising an aliphatic radical containing from 2-6 carbon atoms or a halogen atom of atomic weight greater than 19, salts thereof are obtained by the cylization of an ester of the acid of the Formula III or a compound of Formula VII <FORM:1123413/C2/2> reduction of the olefinic bond, the nitro group and where present the cyclic amide group of the resulting cyclized product followed, if desired, by the conversion of the resulting 10-amino group into another group.  Cyclization may be effected with phosphorus oxychloride and reduction with lithium aluminium hydride. Methylation of 2,3-dimethoxy-10-aminoberbine may be effected with formaldehyde and conversion to a 10-hydroxy compound may be effected by standard procedures.  A 10-halogen atom may be introduced by treating the 10-amino compound with cuprous chloride.  Pharmaceutical compositions having tranquillizing and analgesic properties containing the above compounds are administered orally, rectally or parenterally.
Patent GB-1003454-A (GB)
Title: Cleaning bands of material such as sheet metal
IPC: C23G1/00
Filed: 1963-12-06
Abstract: A band of conducting material undergoing treatment in a liquid to remove an electrically resistant film on the band, particularly oxide scale on sheet steel by pickling, is contacted by a pair of electrodes and changes in an electrical system containing the electrodes are detected e.g. by measuring the P.D. across the electrodes to detect the presence of the film. The pickling may be carried out in a plurality of baths, one pair of electrodes being applied to the band between the last and penultimate bath while another such pair with means for measuring the P.D. across them is applied to the band after the last bath, and the speed of the band through the baths being adjusted until the P.D.s across the electrodes in each pair correspond to there being no film on the band leaving the last bath while there is some film on the band leaving the penultimate bath. Preferably the pairs of electrodes are made to sweep transversely across the band, and compressed air is projected against the band to prevent pickling solution interfering with the operation of the electrodes.
Patent GB-1445746-A (GB)
Title: Data processing system
IPC: G06F9/38
Filed: 1973-10-17
Abstract: 1445746 Pipe-lining AMDAHL CORP 17 Oct 1973 [30 Oct 1972] 48428/73 Heading G4A In a data processing system having a main store (2, Fig. 1, not shown), storage control (4), instruction handling apparatus (8) and instruction execution apparatus (10), successive instructions each comprising a plurality of segments are introduced into an instruction pipeline 350 (Fig. 3) with a time offset between instructions of two clock cycles of the processing system. The instruction handling apparatus 8 includes addressing registers 310-316, the outputs of which are connected to an effective address adder 318 which derives an address which is both fed back into the addressing register and to a buffer address register 363 (Fig. 5) of storage control 4 to access a high speed buffer for the desired data which if it is an operand is fed into register 389 and if it is an instruction is fed into register 388 for gating, either via register 330 or directly into the instruction pipe-line 350 which comprises a plurality of shift register stages for storing the last 9 segments at each instruction. The first four segments are processed under the control of sequencer 325. During a first clock period the prefetch offset segment PFO is processed by reading into register 312 an instruction address modifier. During a second clock period the instruction address signal IA is processed by gating the contents of the registers 310-316 to the adder 318 to derive an address. During a third clock period (for processing segment IB1 an instruction buffer initiation) the address is fed to the register 363 (the segment PF0 of the next instruction being simultaneously processed). In the next clock cycle instruction buffer access is completed with an instruction being stored in register 388 for decoding during the processing of the D segment to derive control signals to cause the address registers 310-316 to be loaded with information for stack registers 338, 339 during the processing of segment R. The operand address information is then used during the next clock cycle (assigned to the processing of segment OA) to derive an address in register 332 which is fed during the next clock period to buffer address register 363. The buffer is then again accessed and an operand stored in register 389. This operand and a further operand in register 341 or 342 are processed during a clock cycle assigned to segment E1 to produce a result in one of registers 23, 24, 25, 28, 29 or 36 (Fig. 4) which is fed in the next segment period (E2) to functional unit (e.g. adder 18 or multiplier 19). A check on the validity of the computer data is effected during the next segment period (CK) and if it is correct during the last segment period W it is stored in register 338 or 339. All the data includes parity information.
Patent GB-1173847-A (GB)
Title: A Method of Operating a Direct Viewing Bistable Storage Tube
IPC: H01J31/12
Filed: 1968-10-14
Abstract: 1,173,847. Cathode-ray storage and display tubes. TEKTRONIX Inc. 14 Oct., 1968 [16 Oct., 1967], No. 48585/68. Heading H1D. In a direct-viewing bi-stable storage tube in which a non-stored " write-through " charge image is displayed during bi-stable storage of another charge image on the same storage dielectric and the two images, for example, displayed side-by-side, the non-stored image is displayed with high brightness by interrupting bombardment by the writing beam of the storage dielectric portions corresponding to the non-stored charge image during writing. This is to reduce the bombardment time per unit area in order to prevent the potential of the non- stored charge image from exceeding the critical minimum voltage necessary for bi-stable storage. At the same time a high average beam current necessary for high brightness is maintained. Further, with use of a high beam current small changes in the grid bias voltage due to power supply ripple are of less significance. The beam bombardment is interrupted either by pulsing the writing beam on and off or by a " dither " movement of the beam in a closed, e.g. circular, path. The two methods may also be combined. Movement of the beam in a circular path produces an annular trace which may be used as a pointer or moved to outline the form of a character. The annular trace may be of sufficiently small diameter that the centre of the trace is not visible to the eye. The storage dielectric is flooded with electrons during the formation of the non-stored " write-through " charge image but the flood electrons may be cut off during the formation of the stored charge image. In the circuit arrangement shown comprising a directview storage tube with a storage dielectric layer 14 of phosphor material, a single writing gun 18, 20, 22, pairs of deflection plates 24, 26 and a pair of flood guns 28, 30, the control grid 20 of the writing gun and the horizontal and vertical deflection plates 24, 26 may be connected via three-position switches 54, 50, 38 in " Store," " Pulsed W.T. (write-through) " and " Dither W.T." modes of operation. The phosphor layer 14 may be in the form of separate dots, allowing the conductive film 16 to serve as a collector of the secondary electrons or the phosphor layer may be sufficiently porous to enable the transmission of secondary electrons through it. The invention may also be applied to a direct-view storage tube of the mesh storage target type.